Magnetic Surgical Device to Manipulate Tissue in Laparoscopic Surgeries or via Natural Holes Performed with a Single Trocar

Abstract

The present invention is related to surgical instruments incorporating the usage of magnets for application in minimally invasive surgery to perform abdominal surgery with a single incision through the navel which is the most widely used, this incision can also be done through some natural hole like the vagina, mouth, etc. Generally, the invention comprises instruments to perform cholecystectomy (gallbladder removal), but they are also useful for all type of operation requiring mobilization, traction, counter-traction or also separation of abdominal organs. They can be used in several kinds of surgeries, such as laparoscopy, general, gynecological, and urologic surgery.

1 . A magnetic surgical device for manipulating tissue during surgery comprising:
 a grip that allows firmly taking hold of tissue;   a magnetic system;   means of interconnection between said grip and said magnetic system; and   a ferromagnetic steel tube that houses the magnetic system and provides a high magnetic-permeability material that improves the magnetic field polarization.   
   
   
       2 . The magnetic surgical device of  claim 1 , wherein said grip and said means of interconnection are made of non-ferromagnetic material. 
   
   
       3 . The magnetic surgical device of  claim 1 , wherein said ferromagnetic steel tube comprises a first cavity for housing the magnetic system and another second cavity for housing the end of the interconnection means. 
   
   
       4 . The magnetic surgical device of  claim 1 , wherein a safety string is anchored to the second cavity of the steel tube, the safety string providing a link that allows recovering the tube when it accidentally falls during a surgery intervention, and also placing and removing it from a patient. 
   
   
       5 . The magnetic surgical device of  claim 4 , wherein the magnetic system is formed by one or more annular magnets, the safety string crossing trough the centre of the annular magnets to come out the surgical device. 
   
   
       6 . The magnetic surgical device of  claim 4 , wherein the steel tube comprises a side hole next to the header, the safety string crossing trough said side hole to come out the surgical device. 
   
   
       7 . The magnetic surgical device of  claim 1 , wherein said grip consists of a crocodile type clip comprising:
 two grips linked to each other, wherein said grips have a sawtooth profile on the side on which they contact each other when the clip is closed, and wherein said grips have fins on the side on which they are not in contact to each other when the clip is closed;   a pin linking said grips and allowing these to be articulated one with the other; and   a spring that keeps said grips in contact in the closed position of the clip.   
   
   
       8 . The magnetic surgical device of  claim 1 , wherein said annular magnets are made of a rare earth material and they are gold, nickel, silver or titanium. 
   
   
       9 . A surgical apparatus for positioning an external magnet during surgery comprising:
 a cup-shaped device upwardly closed by a tap that has a central threaded through-hole and downwardly open;   a central pin threaded to said upper tap of the cup-shaped device;   a manually driven wheel rigidly fixed to said central pin; and   a cylindrical magnet housed within the cup-shaped device and rigidly fixed to said central pin;   wherein upon manually turning said driven wheel and said central pin, the cylindrical magnet within the cup-shaped device is vertically moved allowing regulating the strength of the magnetic field.   
   
   
       10 . The surgical apparatus of  claim 9 , wherein said cylindrical magnet housed within the cup-shaped device is permanent magnet made of a rare earth material. 
   
   
       11 . A surgical device for manipulating tissue during surgery comprising:
 a clip that allows firmly taking hold of tissue;   a needle; and   a string that interconnect said clip and said needle.   
   
   
       12 . The surgical device of  claim 11 , wherein the clip is made of a non-ferromagnetic material. 
   
   
       13 . The surgical device of  claim 11 , wherein the clip is made of a ferromagnetic material.